Config = {
    #   训练前一定要修改num_classes
    'num_classes': 3,
    'min_dim': 512,
    'feature_maps': [64, 32, 16, 8, 6, 4],
    'steps': [8, 16, 32, 64, 100, 300],
    #   min_sizes、max_sizes可用于设定先验框的大小
    'min_sizes': [30, 60, 111, 162, 213, 264],
    'max_sizes': [60, 111, 162, 213, 264, 315],
    'aspect_ratios': [[2], [2, 3], [2, 3], [2, 3], [2], [2]],
    'variance': [0.1, 0.2],
    'clip': True,
}
